Quaking Grass (trembling grass) care

Light

Most houseplants will scorch where quaking grass thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Outdoor grass preferring full sun for densest growth and the best display of trembling seedheads; tolerates light shade but flowers most freely and stays upright in open, sunny positions. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for water moderately; drought-tolerant once established for quaking grass, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Prefers moderate moisture but copes well with dry conditions once rooted, suiting lean meadow and gravel plantings. Avoid waterlogged soils, which it dislikes, especially over winter.

Soil and pot

Quaking Grass grows best in well-drained, lean to average soil. Thrives in poor to moderately fertile, free-draining soils and is notably happy on chalky, alkaline ground; tolerates neutral to alkaline pH. Avoid rich, wet soils that cause floppy growth. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Quaking Grass sits happiest at around Ambient outdoor humidity and -23 to 27°C (-9 to 81°F). A hardy meadow grass with no special humidity needs, well adapted to temperate and maritime climates and cool grassland conditions. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed quaking grass sparingly. Needs no feeding and actually prefers lean soil; fertiliser produces lax, floppy growth and fewer of the prized dancing seedheads. Skip feeding entirely in average ground. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on quaking grass in the Growli community. Each is annotated with the most common cause so you know where to start.

• Flopping in rich soil — Lush, lax growth that splays open results from over-rich or over-watered conditions; grow lean and sunny to keep stems wiry and upright.
• Short-lived clumps — Can be short-lived, fading after a few years; divide regularly or allow some self-seeding to maintain the planting.
• Winter wet rot — Crowns can rot in heavy, waterlogged winter soils; ensure sharp drainage, particularly on clay.
• Tired summer foliage — Foliage and faded seedheads look tired after flowering; cut back spent stems to tidy the clump and encourage fresh basal growth.

Propagation

Propagate by division in spring or autumn, or by seed sown in autumn or spring; it germinates readily and will gently self-seed in suitable conditions. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Quaking Grass is mildly toxic to pets. Briza media is not individually listed in the ASPCA Toxic and Non-Toxic Plants database, so a pet-safe status cannot be confirmed; treat with caution and verify with a vet. As with grasses generally, ingesting large amounts of foliage or seedheads may cause mild gastrointestinal upset in cats and dogs. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Quaking Grass deep-dive guides

Every aspect of quaking grass care, each with its own calibrated guide:

• Quaking Grass watering schedule
• Quaking Grass light requirements
• Best soil mix for quaking grass
• Quaking Grass fertilizing guide
• When to repot quaking grass
• How to propagate quaking grass
• Quaking Grass growth rate & size
• Quaking Grass cold hardiness
• Quaking Grass temperature & humidity
• Is quaking grass toxic to cats & dogs?
• Is quaking grass toxic to cats?
• Is quaking grass toxic to dogs?
• Getting quaking grass to bloom

Featured in these plant shortlists

Quaking Grass qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Quaking Grass is also known as quaking grass, trembling grass, and doddering dillies.

• Peace lily care — light, water and common problems
• Bird of paradise care — light, water and common problems
• Hoya care — light, water and common problems
• All 3899 plant care guides in the Growli library